C code of read.compact() is now more robust in case of unusual (unlikely) input


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@855 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Typo fix


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/dplr@856 edb9625f-4e0d-4859-8d74-9fd3b1da38cb